package com.alex.wechat.mp.message.mass.controller;

import java.io.IOException;
import java.io.Serializable;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.ConstraintViolation;
import javax.validation.Validator;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.hibernate.criterion.MatchMode;
import org.jeecgframework.core.beanvalidator.BeanValidators;
import org.jeecgframework.core.common.controller.BaseController;
import org.jeecgframework.core.common.exception.BusinessException;
import org.jeecgframework.core.common.hibernate.qbc.CriteriaQuery;
import org.jeecgframework.core.common.model.json.AjaxJson;
import org.jeecgframework.core.common.model.json.DataGrid;
import org.jeecgframework.core.constant.Globals;
import org.jeecgframework.core.util.ExceptionUtil;
import org.jeecgframework.core.util.MyBeanUtils;
import org.jeecgframework.core.util.ResourceUtil;
import org.jeecgframework.core.util.StringUtil;
import org.jeecgframework.poi.excel.ExcelImportUtil;
import org.jeecgframework.poi.excel.entity.ExportParams;
import org.jeecgframework.poi.excel.entity.ImportParams;
import org.jeecgframework.poi.excel.entity.vo.NormalExcelConstants;
import org.jeecgframework.tag.core.easyui.TagUtil;
import org.jeecgframework.tag.vo.datatable.SortDirection;
import org.jeecgframework.web.cgform.common.CgAutoListConstant;
import org.jeecgframework.web.system.service.SystemService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.util.UriComponentsBuilder;

import com.alex.wechat.mp.config.WxContext;
import com.alex.wechat.mp.fans.entity.WxFansEntity;
import com.alex.wechat.mp.fans.service.WxFansServiceI;
import com.alex.wechat.mp.media.entity.MediaTypes;
import com.alex.wechat.mp.media.entity.WxMediaEntity;
import com.alex.wechat.mp.message.mass.entity.WxMassBillEntity;
import com.alex.wechat.mp.message.mass.entity.WxMassUsersEntity;
import com.alex.wechat.mp.message.mass.page.WxMassBillPage;
import com.alex.wechat.mp.message.mass.service.WxMassBillServiceI;
import com.alex.wechat.mp.message.news.entity.WxNewsTemplate;
import com.alex.wechat.mp.message.news.service.MassMsgBuilder;
import com.alex.wechat.mp.message.text.entity.WxTextTemplate;
import com.gomore.jeecg.common.Assert;

import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.WxMpMassOpenIdsMessage;
import me.chanjar.weixin.mp.bean.WxMpMassPreviewMessage;
import me.chanjar.weixin.mp.bean.WxMpMassTagMessage;
import me.chanjar.weixin.mp.bean.result.WxMpMassSendResult;

/**
 * @Title: Controller
 * @Description: 微信群发消息
 * @author onlineGenerator
 * @date 2016-12-23 15:58:53
 * @version V1.0
 *
 */
@Controller
@RequestMapping("/wxMassBillController")
public class WxMassBillController extends BaseController {
  /**
   * Logger for this class
   */
  private static final Logger logger = Logger.getLogger(WxMassBillController.class);

  @Autowired
  private WxMassBillServiceI wxMassBillService;
  @Autowired
  private SystemService systemService;
  @Autowired
  private Validator validator;
  @Autowired
  private WxFansServiceI fansService;
  @Autowired
  private WxMpService wxService;
  @Autowired
  private MassMsgBuilder msgBuilder;

  /**
   * 微信群发消息列表 页面跳转
   * 
   * @return
   */
  @RequestMapping(params = "list")
  public ModelAndView list(HttpServletRequest request) {
    return new ModelAndView("com/gomore/wechat/mp/message/mass/wxMassBillList");
  }

  /**
   * easyui AJAX请求数据
   * 
   * @param request
   * @param response
   * @param dataGrid
   * @param user
   */

  @RequestMapping(params = "datagrid")
  public void datagrid(WxMassBillEntity wxMassBill, HttpServletRequest request,
      HttpServletResponse response, DataGrid dataGrid) {
    CriteriaQuery cq = new CriteriaQuery(WxMassBillEntity.class, dataGrid);
    // 查询条件组装器
    org.jeecgframework.core.extend.hqlsearch.HqlGenerateUtil.installHql(cq, wxMassBill);
    try {
      // 自定义追加查询条件

      // 固定不查当前公众号
      cq.eq("accountId", WxContext.getOriginalId());
    } catch (Exception e) {
      throw new BusinessException(e.getMessage());
    }
    cq.add();
    this.wxMassBillService.getDataGridReturn(cq, true);
    TagUtil.datagrid(response, dataGrid);
  }

  /**
   * 删除微信群发消息
   * 
   * @return
   */
  @RequestMapping(params = "doDel")
  @ResponseBody
  public AjaxJson doDel(WxMassBillEntity wxMassBill, HttpServletRequest request) {
    AjaxJson j = new AjaxJson();
    wxMassBill = systemService.getEntity(WxMassBillEntity.class, wxMassBill.getId());
    String message = "微信群发消息删除成功";
    try {
      wxMassBillService.delMain(wxMassBill);
      systemService.addLog(message, Globals.Log_Type_DEL, Globals.Log_Leavel_INFO);
    } catch (Exception e) {
      e.printStackTrace();
      message = "微信群发消息删除失败";
      throw new BusinessException(e.getMessage());
    }
    j.setMsg(message);
    return j;
  }

  /**
   * 批量删除微信群发消息
   * 
   * @return
   */
  @RequestMapping(params = "doBatchDel")
  @ResponseBody
  public AjaxJson doBatchDel(String ids, HttpServletRequest request) {
    AjaxJson j = new AjaxJson();
    String message = "微信群发消息删除成功";
    try {
      for (String id : ids.split(",")) {
        WxMassBillEntity wxMassBill = systemService.getEntity(WxMassBillEntity.class, id);
        wxMassBillService.delMain(wxMassBill);
        systemService.addLog(message, Globals.Log_Type_DEL, Globals.Log_Leavel_INFO);
      }
    } catch (Exception e) {
      e.printStackTrace();
      message = "微信群发消息删除失败";
      throw new BusinessException(e.getMessage());
    }
    j.setMsg(message);
    return j;
  }

  /**
   * 添加微信群发消息
   * 
   * @param ids
   * @return
   */
  @RequestMapping(params = "doAdd")
  @ResponseBody
  public AjaxJson doAdd(WxMassBillEntity wxMassBill, WxMassBillPage wxMassBillPage,
      HttpServletRequest request) {
    List<WxMassUsersEntity> wxMassUsersList = wxMassBillPage.getWxMassUsersList();
    AjaxJson j = new AjaxJson();
    String message = "添加成功";
    try {
      wxMassBillService.addMain(wxMassBill, wxMassUsersList);
      systemService.addLog(message, Globals.Log_Type_INSERT, Globals.Log_Leavel_INFO);
    } catch (Exception e) {
      e.printStackTrace();
      message = "微信群发消息添加失败";
      throw new BusinessException(e.getMessage());
    }
    j.setMsg(message);
    return j;
  }

  /**
   * 更新微信群发消息
   * 
   * @param ids
   * @return
   */
  @RequestMapping(params = "doUpdate")
  @ResponseBody
  public AjaxJson doUpdate(WxMassBillEntity wxMassBill, WxMassBillPage wxMassBillPage,
      HttpServletRequest request) {
    List<WxMassUsersEntity> wxMassUsersList = wxMassBillPage.getWxMassUsersList();
    AjaxJson j = new AjaxJson();
    String message = "更新成功";
    try {
      wxMassBillService.updateMain(wxMassBill, wxMassUsersList);
      systemService.addLog(message, Globals.Log_Type_UPDATE, Globals.Log_Leavel_INFO);
    } catch (Exception e) {
      e.printStackTrace();
      message = "更新微信群发消息失败";
      throw new BusinessException(e.getMessage());
    }
    j.setMsg(message);
    return j;
  }

  /**
   * 微信群发消息新增页面跳转
   * 
   * @return
   */
  @RequestMapping(params = "goAdd")
  public ModelAndView goAdd(WxMassBillEntity wxMassBill, HttpServletRequest req) {
    if (StringUtil.isNotEmpty(wxMassBill.getId())) {
      wxMassBill = wxMassBillService.getEntity(WxMassBillEntity.class, wxMassBill.getId());
    } else {
      wxMassBill.setMsgType(MassMsgType.CUSTOM_TEXT);
      wxMassBill.setIsToAll(CgAutoListConstant.BOOL_FALSE);
      wxMassBill.setSendIgnoreReprint(CgAutoListConstant.BOOL_TRUE);
    }
    req.setAttribute("wxMassBillPage", wxMassBill);
    return new ModelAndView("com/gomore/wechat/mp/message/mass/wxMassBill-add");
  }

  /**
   * 微信群发消息编辑页面跳转
   * 
   * @return
   */
  @RequestMapping(params = "goUpdate")
  public ModelAndView goUpdate(WxMassBillEntity wxMassBill, HttpServletRequest req) {
    if (StringUtil.isNotEmpty(wxMassBill.getId())) {
      wxMassBill = wxMassBillService.getEntity(WxMassBillEntity.class, wxMassBill.getId());
      req.setAttribute("wxMassBillPage", wxMassBill);
    }
    return new ModelAndView("com/gomore/wechat/mp/message/mass/wxMassBill-update");
  }

  /**
   * 加载明细列表[微信群发用户]
   * 
   * @return
   */
  @RequestMapping(params = "wxMassUsersList")
  public ModelAndView wxMassUsersList(WxMassBillEntity wxMassBill, HttpServletRequest req) {
    // ===================================================================================
    // 获取参数
    Object id = wxMassBill.getId();
    // ===================================================================================
    // 查询-微信群发用户
    String hql0 = "from WxMassUsersEntity where 1 = 1 AND oWNER = ? ";
    try {
      List<WxMassUsersEntity> wxMassUsersEntityList = systemService.findByHql(hql0, id);
      req.setAttribute("wxMassUsersList", wxMassUsersEntityList);
    } catch (Exception e) {
      logger.info(e.getMessage());
    }
    return new ModelAndView("com/gomore/wechat/mp/message/mass/wxMassUsersList");
  }

  /**
   * 导出excel
   *
   * @param request
   * @param response
   */
  @RequestMapping(params = "exportXls")
  public String exportXls(WxMassBillEntity wxMassBill, HttpServletRequest request,
      HttpServletResponse response, DataGrid dataGrid, ModelMap map) {
    CriteriaQuery cq = new CriteriaQuery(WxMassBillEntity.class, dataGrid);
    // 查询条件组装器
    org.jeecgframework.core.extend.hqlsearch.HqlGenerateUtil.installHql(cq, wxMassBill);
    try {
      // 自定义追加查询条件
    } catch (Exception e) {
      throw new BusinessException(e.getMessage());
    }
    cq.add();
    List<WxMassBillEntity> list = this.wxMassBillService.getListByCriteriaQuery(cq, false);
    List<WxMassBillPage> pageList = new ArrayList<WxMassBillPage>();
    if (list != null && list.size() > 0) {
      for (WxMassBillEntity entity : list) {
        try {
          WxMassBillPage page = new WxMassBillPage();
          MyBeanUtils.copyBeanNotNull2Bean(entity, page);
          Object id = entity.getId();
          String hql0 = "from WxMassUsersEntity where 1 = 1 AND oWNER = ? ";
          List<WxMassUsersEntity> wxMassUsersEntityList = systemService.findByHql(hql0, id);
          page.setWxMassUsersList(wxMassUsersEntityList);
          pageList.add(page);
        } catch (Exception e) {
          logger.info(e.getMessage());
        }
      }
    }
    map.put(NormalExcelConstants.FILE_NAME, "微信群发消息");
    map.put(NormalExcelConstants.CLASS, WxMassBillPage.class);
    map.put(NormalExcelConstants.PARAMS, new ExportParams("微信群发消息列表", "导出人:Jeecg", "导出信息"));
    map.put(NormalExcelConstants.DATA_LIST, pageList);
    return NormalExcelConstants.JEECG_EXCEL_VIEW;
  }

  /**
   * 通过excel导入数据
   * 
   * @param request
   * @param
   * @return
   */
  @RequestMapping(params = "importExcel", method = RequestMethod.POST)
  @ResponseBody
  public AjaxJson importExcel(HttpServletRequest request, HttpServletResponse response) {
    AjaxJson j = new AjaxJson();
    MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
    Map<String, MultipartFile> fileMap = multipartRequest.getFileMap();
    for (Map.Entry<String, MultipartFile> entity : fileMap.entrySet()) {
      MultipartFile file = entity.getValue();// 获取上传文件对象
      ImportParams params = new ImportParams();
      params.setTitleRows(2);
      params.setHeadRows(2);
      params.setNeedSave(true);
      try {
        List<WxMassBillPage> list = ExcelImportUtil.importExcel(file.getInputStream(),
            WxMassBillPage.class, params);
        WxMassBillEntity entity1 = null;
        for (WxMassBillPage page : list) {
          entity1 = new WxMassBillEntity();
          MyBeanUtils.copyBeanNotNull2Bean(page, entity1);
          wxMassBillService.addMain(entity1, page.getWxMassUsersList());
        }
        j.setMsg("文件导入成功！");
      } catch (Exception e) {
        j.setMsg("文件导入失败！");
        logger.error(ExceptionUtil.getExceptionMessage(e));
      } finally {
        try {
          file.getInputStream().close();
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
    }
    return j;
  }

  /**
   * 导出excel 使模板
   */
  @RequestMapping(params = "exportXlsByT")
  public String exportXlsByT(ModelMap map) {
    map.put(NormalExcelConstants.FILE_NAME, "微信群发消息");
    map.put(NormalExcelConstants.CLASS, WxMassBillPage.class);
    map.put(NormalExcelConstants.PARAMS, new ExportParams("微信群发消息列表",
        "导出人:" + ResourceUtil.getSessionUserName().getRealName(), "导出信息"));
    map.put(NormalExcelConstants.DATA_LIST, new ArrayList());
    return NormalExcelConstants.JEECG_EXCEL_VIEW;
  }

  /**
   * 导入功能跳转
   *
   * @return
   */
  @RequestMapping(params = "upload")
  public ModelAndView upload(HttpServletRequest req) {
    req.setAttribute("controller_name", "wxMassBillController");
    return new ModelAndView("common/upload/pub_excel_upload");
  }

  @RequestMapping(method = RequestMethod.GET)
  @ResponseBody
  public List<WxMassBillEntity> list() {
    List<WxMassBillEntity> listWxMassBills = wxMassBillService.getList(WxMassBillEntity.class);
    return listWxMassBills;
  }

  @RequestMapping(value = "/{id}", method = RequestMethod.GET)
  @ResponseBody
  public ResponseEntity<?> get(@PathVariable("id") String id) {
    WxMassBillEntity task = wxMassBillService.get(WxMassBillEntity.class, id);
    if (task == null) {
      return new ResponseEntity(HttpStatus.NOT_FOUND);
    }
    return new ResponseEntity(task, HttpStatus.OK);
  }

  @RequestMapping(method = RequestMethod.POST, consumes = MediaType.APPLICATION_JSON_VALUE)
  @ResponseBody
  public ResponseEntity<?> create(@RequestBody WxMassBillPage wxMassBillPage,
      UriComponentsBuilder uriBuilder) {
    // 调用JSR303 Bean Validator进行校验，如果出错返回含400错误码及json格式的错误信息.
    Set<ConstraintViolation<WxMassBillPage>> failures = validator.validate(wxMassBillPage);
    if (!failures.isEmpty()) {
      return new ResponseEntity(BeanValidators.extractPropertyAndMessage(failures),
          HttpStatus.BAD_REQUEST);
    }

    // 保存
    List<WxMassUsersEntity> wxMassUsersList = wxMassBillPage.getWxMassUsersList();

    WxMassBillEntity wxMassBill = new WxMassBillEntity();
    try {
      MyBeanUtils.copyBeanNotNull2Bean(wxMassBill, wxMassBillPage);
    } catch (Exception e) {
      logger.info(e.getMessage());
    }
    wxMassBillService.addMain(wxMassBill, wxMassUsersList);

    // 按照Restful风格约定，创建指向新任务的url, 也可以直接返回id或对象.
    String id = wxMassBillPage.getId();
    URI uri = uriBuilder.path("/rest/wxMassBillController/" + id).build().toUri();
    HttpHeaders headers = new HttpHeaders();
    headers.setLocation(uri);

    return new ResponseEntity(headers, HttpStatus.CREATED);
  }

  @RequestMapping(value = "/{id}", method = RequestMethod.PUT,
      consumes = MediaType.APPLICATION_JSON_VALUE)
  public ResponseEntity<?> update(@RequestBody WxMassBillPage wxMassBillPage) {
    // 调用JSR303 Bean Validator进行校验，如果出错返回含400错误码及json格式的错误信息.
    Set<ConstraintViolation<WxMassBillPage>> failures = validator.validate(wxMassBillPage);
    if (!failures.isEmpty()) {
      return new ResponseEntity(BeanValidators.extractPropertyAndMessage(failures),
          HttpStatus.BAD_REQUEST);
    }

    // 保存
    List<WxMassUsersEntity> wxMassUsersList = wxMassBillPage.getWxMassUsersList();

    WxMassBillEntity wxMassBill = new WxMassBillEntity();
    try {
      MyBeanUtils.copyBeanNotNull2Bean(wxMassBill, wxMassBillPage);
    } catch (Exception e) {
      logger.info(e.getMessage());
    }
    wxMassBillService.updateMain(wxMassBill, wxMassUsersList);

    // 按Restful约定，返回204状态码, 无内容. 也可以返回200状态码.
    return new ResponseEntity(HttpStatus.NO_CONTENT);
  }

  @RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
  @ResponseStatus(HttpStatus.NO_CONTENT)
  public void delete(@PathVariable("id") String id) {
    WxMassBillEntity wxMassBill = wxMassBillService.get(WxMassBillEntity.class, id);
    wxMassBillService.delMain(wxMassBill);
  }

  @RequestMapping(params = "goSelectMsgTpl")
  public ModelAndView goSelectMsgTpl(String type, HttpServletRequest req) {
    req.setAttribute("type", type);
    return new ModelAndView("com/gomore/wechat/mp/message/mass/selectMsgTpl");
  }

  /**
   * 模板消息列表。
   * 
   * @param type
   * @param request
   * @param response
   * @param dataGrid
   */
  @RequestMapping(params = "datagridMsgTpl")
  public void datagridMsgTpl(HttpServletRequest request, HttpServletResponse response,
      DataGrid dataGrid) {
    final String type = request.getParameter("type");
    final String templateName = request.getParameter("templateName");

    Class<?> entityClass = null;
    String tplType = null; // 模板类型
    boolean hasMediaId = true;
    if (MassMsgType.CUSTOM_TEXT.equals(type)) {
      throw new BusinessException("不支持自定义文本类型");

    } else if (MassMsgType.WXCARD.equals(type)) {
      throw new BusinessException("微信卡券暂不支持");

    } else if (MassMsgType.MASS_MSG_TEXT.equals(type)) {
      entityClass = WxTextTemplate.class;
      hasMediaId = false;

    } else if (MassMsgType.MASS_MSG_NEWS.equals(type)) {
      entityClass = WxNewsTemplate.class;

    } else if (MassMsgType.MASS_MSG_IMAGE.equals(type)) {
      entityClass = WxMediaEntity.class;
      tplType = MediaTypes.IMAGE;

    } else if (MassMsgType.MASS_MSG_VOICE.equals(type)) {
      entityClass = WxMediaEntity.class;
      tplType = MediaTypes.VOICE;

    } else if (MassMsgType.MASS_MSG_VIDEO.equals(type)) {
      entityClass = WxMediaEntity.class;
      tplType = MediaTypes.VIDEO;

    } else {
      throw new BusinessException("不支持的媒体类型: " + type);
    }

    CriteriaQuery cq = new CriteriaQuery(entityClass, dataGrid);
    // 查指定媒体类型
    if (StringUtils.isNotBlank(tplType)) {
      cq.eq("type", tplType);
    }

    // 对于需要先上传的媒体资料，需判断是否已上传
    if (hasMediaId) {
      cq.isNotNull("mediaId");
    }

    if (StringUtils.isNotBlank(templateName)) {
      cq.like("templateName", templateName, MatchMode.ANYWHERE);
    }

    // 固定不查当前公众号
    cq.eq("accountId", WxContext.getOriginalId());

    // 排序条件
    if (StringUtils.isNotBlank(dataGrid.getSort())) {
      cq.addOrder(dataGrid.getSort(), dataGrid.getOrder());
    } else {
      // 默认按时间倒序
      cq.addOrder("updateDate", SortDirection.desc);
    }

    cq.add();
    this.systemService.getDataGridReturn(cq, true);
    TagUtil.datagrid(response, dataGrid);
  }

  @RequestMapping(params = "goSelectFans")
  public ModelAndView goSelectFans(WxFansEntity fans, HttpServletRequest req) {
    return new ModelAndView("com/gomore/wechat/mp/message/mass/selectFans");
  }

  @RequestMapping(params = "datagridFans")
  public void datagridFans(WxFansEntity fans, HttpServletRequest request,
      HttpServletResponse response, DataGrid dataGrid) {
    CriteriaQuery cq = new CriteriaQuery(WxFansEntity.class, dataGrid);
    // 查询条件组装器
    // org.jeecgframework.core.extend.hqlsearch.HqlGenerateUtil.installHql(cq,
    // gasItem,
    // request.getParameterMap());
    if (StringUtils.isNotBlank(fans.getNickname())) {
      cq.like("nickname", fans.getNickname().trim(), MatchMode.ANYWHERE);
    }

    try {
      if (StringUtils.isNotBlank(dataGrid.getSort())) {
        cq.addOrder(dataGrid.getSort(), dataGrid.getOrder());
      }

      if (cq.getOrdermap().isEmpty()) {
        cq.addOrder("createDate", SortDirection.desc);
      }

      // 自定义追加查询条件
    } catch (Exception e) {
      throw new BusinessException(e.getMessage());
    }
    cq.add();
    this.fansService.getDataGridReturn(cq, true);
    TagUtil.datagrid(response, dataGrid);
  }

  @RequestMapping(params = "preview")
  @ResponseBody
  public AjaxJson preview(@RequestParam("id") String id, @RequestParam("userName") String userName,
      HttpServletRequest request, HttpServletResponse response) {
    AjaxJson j = new AjaxJson();

    try {
      Assert.assertArgumentNotEmpty(id, "id");
      Assert.assertArgumentNotEmpty(userName, "userName");

      WxMassBillEntity bill = wxMassBillService.get(WxMassBillEntity.class, id);
      if (bill == null) {
        throw new BusinessException("找不到指定的群发单");
      }

      WxMpMassPreviewMessage previewMsg = msgBuilder.preview(bill, userName);
      WxMpMassSendResult res = wxService.massMessagePreview(previewMsg);
      bill.setMsgId(res.getMsgId());
      bill.setMsgDataId(res.getMsgDataId());
      wxMassBillService.saveOrUpdate(bill);

      j.setMsg("成功发送预览消息");
    } catch (Exception e) {
      logger.error("", e);

      j.setSuccess(false);
      j.setMsg(e.getMessage());
    }

    return j;
  }

  @RequestMapping(params = "send")
  @ResponseBody
  public AjaxJson send(@RequestParam("id") String id, HttpServletRequest request,
      HttpServletResponse response) {
    AjaxJson j = new AjaxJson();

    try {
      Assert.assertArgumentNotEmpty(id, "id");

      WxMassBillEntity bill = wxMassBillService.get(WxMassBillEntity.class, id);
      if (bill == null) {
        throw new BusinessException("找不到指定的群发单");
      }

      Serializable msg = msgBuilder.send(bill);
      WxMpMassSendResult res = null;
      if (msg instanceof WxMpMassTagMessage) {
        res = wxService.massGroupMessageSend((WxMpMassTagMessage) msg);
      } else if (msg instanceof WxMpMassOpenIdsMessage) {
        res = wxService.massOpenIdsMessageSend((WxMpMassOpenIdsMessage) msg);
      } else {
        throw new BusinessException("构造群发消息失败");
      }

      bill.setMsgId(res.getMsgId());
      bill.setMsgDataId(res.getMsgDataId());
      wxMassBillService.saveOrUpdate(bill);

      j.setMsg("成功发送预览消息");
    } catch (Exception e) {
      logger.error("", e);

      j.setSuccess(false);
      j.setMsg(e.getMessage());
    }

    return j;
  }

}
